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On 24 Mar 2026 the U.S. Federal Communications Commission, acting on a White-House security determination, placed every consumer-grade router built abroad on its Covered List, freezing new imports and sales unless granted rare national-security exemptions.
On 21-22 March 2026 Elon Musk announced that Tesla, SpaceX and xAI will jointly build “Terafab,” a fully-vertical 2 nm semiconductor complex in Austin capable of producing up to one terawatt of compute per year—an order-of-magnitude jump over current global output.
Between 17-21 March 2026, an unusually persistent high-pressure ‘heat dome’ drove temperatures 25-35 °F above normal, smashing hundreds of U.S. March records—topping out at a national March record 112 °F along the CA-AZ border and forcing first-ever mid-March extreme-heat closures, warnings and cooling-center rollouts across Arizona, Nevada and California.
On 22 March 2026 Elon Musk announced a Tesla-SpaceX-xAI plan to build an Austin semiconductor fab called “Terafab” to supply up to one terawatt of AI-focused chips yearly, citing insufficient output from existing suppliers.
On the same day, Singapore rolled out free nationwide access to premium AI tools, Alberta signaled forthcoming regulation on harmful AI, New York legislators pushed an AI-literacy mandate, and a Deloitte survey showed Indian firms hitting 40 % full-scale AI use—collectively marking a global shift from pilot projects to population-level adoption and governance.
From 19–21 March 2026, an anomalous dome of high pressure drove temperatures up to 44.4 °C across the Southwest, producing the region’s first ever wintertime extreme-heat warnings and rewriting mid-March records in more than 65 cities.
On 20 Mar 2026, the FBI and CISA publicly disclosed that a Russian-intelligence phishing campaign has already taken control of thousands of Signal and other encrypted-app accounts by tricking users rather than cracking encryption.
On 21 March 2026, Musk announced a $20-25 billion Tesla–SpaceX plant near Austin that will vertically design-to-package 2 nm chips, targeting one terawatt of AI computing output per year to avert an anticipated supply crunch.
After fixing helium-line and wiring issues in the Vehicle Assembly Building, NASA moved the 322-ft Artemis II Space Launch System back to Launch Complex-39B on 20 March 2026, preserving its 1-6 April launch window for the first crewed lunar fly-by since Apollo.
On 19 Mar 2026 U.S. prosecutors unsealed an indictment alleging Supermicro co-founder Wally Liaw and two associates covertly rerouted $2.5 billion in Nvidia-powered servers through Southeast Asia to China, violating 2022-era export controls and triggering a one-day 28 % plunge in Supermicro’s stock.
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